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2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
2011 physics exam question booklet
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2011 physics exam question booklet

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  • 1. Physics Examination — 553-504Secondary Cycle Two Year Three (Secondary 5)June 2011PhysicsQuestion BookletTime: 3 hours
  • 2. Instructions1. Write the required information on the title page of the Answer Booklet.2. Answer all questions in the Answer Booklet.3. This examination is made up of 13 questions and is worth 55 marks.4. You may use drawing instruments, and a scientific calculator with or withoutgraphic display.5. You may refer to the Table of Trigonometric Ratios and lists of Formulas andQuantities included in the Appendix of the Question Booklet. The use of any otherreference material is strictly forbidden.Note: Figures are not necessarily drawn to scale.TIME: 3 hoursPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 1
  • 3. Evaluation Situation ContextCommunity Service ProjectA group of high school students have decided to travel to Togo, West Africa as part ofa community service project. They plan to help build a well next to an elementaryschool in a rural area near the town of Dapaong, in the Northern part of Togo. Duringtheir service project they encounter several physics problems that need to be resolved.All people and situations mentioned in this examination are fictional.Gook luck!Question 1The students depart for Togo from the Pierre Elliot Trudeau Airport in Dorval. Theydecide to use the moving sidewalk to get to their departure gate. It takes the sidewalk24.0 s to move the students its entire 45.0 m length.What is the average speed of the moving sidewalk in km/h?Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 2
  • 4. Question 2At the Lomé-Tokoin International Airport in Togo, luggage is weighed using a springscale illustrated below. The maximum allowance for each passenger is 23 kg (50 lbs).The diagram below shows how much the spring is deformed when Alex’s luggage isweighed. The force constant for the spring is 4.6 X 103N/m.a) What is the spring deformation?Observe the conventions regarding significant figures and give the uncertainty ofthe measurement.b) Does Alex’s luggage exceed the maximum allowance permitted per passenger?Justify your answer.Initialspring length(no load)1234567891011121314151617mmcmLuggage Spring ScalePucciPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 3
  • 5. Question 3Arriving at the Lomé-Tokoin International Airport, the students are surveyed by asecurity officer using three mirrors: one convex and two plane mirrors. The securityofficer and students are positioned as shown in the diagram below.a) Which student(s) is/are NOT visible in the security officer’s field of vision?b) Justify your answer by drawing ray diagrams in your Answer Booklet.Field of VisionSecurityOfficer’sEyeAB CDE FGHCMirrorMirrorMirrorPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 4
  • 6. Question 4When the students arrive at the Lomé-Tokoin International Airport in Lomé (A), in thesouth, they must travel by bus to their final destination of Dapaong (B), which is locatedin the northern part of the country.Use the map in your Answer Booklet and the given scale to answer the followingquestions.A ruler is provided for you in Appendix 2.a) What is the total distance travelled by the bus?b) What is the displacement from Lomé to Dapaong?Justify your answer by drawing the displacement on the map in your AnswerBooklet.BURKINA FASOGHANABENINNIGERIALakeVoltaBight of BeninDapaongKaraTOGOSokodéAtakpaméVoltaWhiteVoltaLOMÉABMAP OF TOGONSEWCARDINAL POINTSScale: 1 cm = 50 kmPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 5
  • 7. Question 5On the route from Lomé to Sokode, the mini bus transporting the students experiencesa flat tire. The mini bus is elevated using a car jack (shown below). The graph illustratesthe force applied, by the driver on the jack, as a function of distance for one completepush down on the jack’s lever. The driver executes 15 complete push downs on thelever of the jack in 30 seconds.How much power was needed to elevate the mini bus?Record your answer using two significant figures.0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.850100150200250300Distance (m)Force(N)Force versus DistanceCar JackForcePhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 6
  • 8. Question 6Lea is preparing to throw a rope toy to a dog. As such, she is spinning the toy in acircular motion above her head. The motion of the toy is represented in the diagrambelow.Top view of the trajectory of the rope toyRope toyDirection of motionOrbitaltrajectoryThe toy is released from Lea’s hand at the exact position represented in the diagram.a) What will be the trajectory of the toy?Draw and describe the trajectory.b) If Lea spins the toy twice as fast, what effect will that have on the centripetalforce?Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 7
  • 9. Question 7After arriving in the city of Dapaong, Naudira and Marco start work on locating a suitablesite to dig a well for water. They discover a transparent colourless solid in the water.When they shine a flashlight into the water at an angle of 43.0°, they find that the angleof refraction in the transparent solid is 25.0°.What is the nature of the unknown transparent solid found in the water?TransparentsolidAirWater43.0°25.0°NNNaudira and Marco happen to be carrying the following chart with them on their travels.INDICES OF REFRACTIONSubstanceIndex ofRefractionAir 1.00Water 1.33Quartz (fused) 1.46Flint Glass 1.65Zircon 1.92Diamond 2.42Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 8
  • 10. Question 8The students in Dapaong are studying a red effect in water caused by the presence ofalgae, possibly dinoflagellata. A magnifying glass with a focal distance of 4.0 cm is usedto observe an upright image that is five times larger than the algae.What distance separates the algae sample from the lens of the magnifying glass?Question 9Manpreet and Chloé explore the village of Dapaong. They find a store that sells stamps.The store has a sign suspended from a horizontal pole that is attached to the wall of thestore, as shown below.The sign has a mass of 2.9 kg.EMBED Word.Picture.8MarchéMariaRopeRopeHorizontalpolea) Draw a Free Body Diagram of the sign, to represent this situation.b) What is the tension in each rope?Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 9
  • 11. Question 10Sasha pushes a 15 kg cart full of donated books through a 5.0 m long starting area. Thecart is then released and must reach the loading dock at the top of the hill 2.5 m inheight, as shown in the diagram below. He must apply enough force on the cart so thatthe cart is able to travel along the 8.0 m path and reach the top of the hill. The force offriction between the 8.0 m path and the cart is 11.0 N.What minimum force on the cart in the starting area is required to get it to the topof the hill?5.0 mStartingareaStoppingpoint8.0 m2.5 mMass = 15 kgFmin. = ?→Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 10
  • 12. Question 11Tarik and Sondus notice the children playing with a toy car on a ramp. The childrenhave a board elevated at one end, forming a 1.5 m long ramp at an angle of 35°. Thetoy car which has a mass of 275 g is place at the top of the ramp and released. Usinghis stopwatch, Tarik finds that it takes 1.25 s for the toy car to reach the bottom of theramp.What is the force of friction between the toy car and the ramp?Ramp for the toy car35°m = 275 gPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 11
  • 13. Question 12A game played with the local villagers involves propelling a 50.0 g disk along a polishedsurface, and having it land on the ground in various scoring areas as illustrated below.The height of the platform is 1.5 m. Your disk leaves the platform with a velocity of8.0 m/s.How many points will you score?Justify your answer.(Assume the polished surface is frictionless, and neglect air resistance.)5 ptsh = 1.5 mV = 8.0 m/s7 pts 10 pts 7 pts 5 pts2.0 m 3.5 m 5.0 m 6.5 m 8.0 m0 ptsPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 12
  • 14. Question 13While on the bus heading to the nearby village of Kara, the bus driver spots a boulderobstructing the road 90.0 m ahead. The following graph illustrates the bus’s maximumdeceleration capability. The bus is travelling 25 m/s when the driver notices the boulder.What is the maximum amount of time the driver can delay before applying the brakesto avoid hitting the fallen boulder?1.0 2.0 3.0 4.0 5.0 6.010.020.030.0Time (s)Velocity(m/s)Velocity versus Timemaximum deceleration capabilityPhysics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 13
  • 15. Appendix 2FORMULAS AND QUANTITIESEQUATIONS1234567891011121314151617181920mmcmOPTICS MECHANICSθnθn 2211 sinsin =M =oihhoioi=ddhh−fdd1=1+1iotdvav∆∆=tva∆∆=21 )(21tatv=d ∆+∆∆tavv ∆+= 12da+v=v ∆22122tW=P∆dF=W ∆mghE =g2k21= mvEma=FmgF =gkx=FrmvFc2=MATHEMATICSx =aacbb242−±−PHYSICAL CONSTANTSSYMBOL QUANTITY VALUEcgSpeed of light in a vacuumAcceleration due to gravity(earth)3.00 × 108m/s9.8 m/s2Physics – 553-504 (Sec 5)Secondary Cycle Two Year ThreeQuestion Booklet –June 2011 Page 14

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